fixed bug which would prevent 'nanoc co' from working at all
fixed bug which would prevent 'nanoc co' from working at all

--HG--
extra : convert_revision : svn%3A177060d3-6165-4ab0-95eb-642399a075a8/nanoc/trunk%40512

barraq/nanoc,legallybrown/nanoc,remko/nanoc,RubenVerborgh/nanoc,nanoc/nanoc,gjtorikian/nanoc,hilohiro/nanoc